linux/security/keys/compat.c
Christoph Hellwig 5d47b39479 security/keys: remove compat_keyctl_instantiate_key_iov
Now that import_iovec handles compat iovecs, the native version of
keyctl_instantiate_key_iov can be used for the compat case as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-10-03 00:02:16 -04:00

133 lines
3.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/* 32-bit compatibility syscall for 64-bit systems
*
* Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#include <linux/syscalls.h>
#include <linux/keyctl.h>
#include <linux/compat.h>
#include <linux/slab.h>
#include "internal.h"
/*
* The key control system call, 32-bit compatibility version for 64-bit archs
*/
COMPAT_SYSCALL_DEFINE5(keyctl, u32, option,
u32, arg2, u32, arg3, u32, arg4, u32, arg5)
{
switch (option) {
case KEYCTL_GET_KEYRING_ID:
return keyctl_get_keyring_ID(arg2, arg3);
case KEYCTL_JOIN_SESSION_KEYRING:
return keyctl_join_session_keyring(compat_ptr(arg2));
case KEYCTL_UPDATE:
return keyctl_update_key(arg2, compat_ptr(arg3), arg4);
case KEYCTL_REVOKE:
return keyctl_revoke_key(arg2);
case KEYCTL_DESCRIBE:
return keyctl_describe_key(arg2, compat_ptr(arg3), arg4);
case KEYCTL_CLEAR:
return keyctl_keyring_clear(arg2);
case KEYCTL_LINK:
return keyctl_keyring_link(arg2, arg3);
case KEYCTL_UNLINK:
return keyctl_keyring_unlink(arg2, arg3);
case KEYCTL_SEARCH:
return keyctl_keyring_search(arg2, compat_ptr(arg3),
compat_ptr(arg4), arg5);
case KEYCTL_READ:
return keyctl_read_key(arg2, compat_ptr(arg3), arg4);
case KEYCTL_CHOWN:
return keyctl_chown_key(arg2, arg3, arg4);
case KEYCTL_SETPERM:
return keyctl_setperm_key(arg2, arg3);
case KEYCTL_INSTANTIATE:
return keyctl_instantiate_key(arg2, compat_ptr(arg3), arg4,
arg5);
case KEYCTL_NEGATE:
return keyctl_negate_key(arg2, arg3, arg4);
case KEYCTL_SET_REQKEY_KEYRING:
return keyctl_set_reqkey_keyring(arg2);
case KEYCTL_SET_TIMEOUT:
return keyctl_set_timeout(arg2, arg3);
case KEYCTL_ASSUME_AUTHORITY:
return keyctl_assume_authority(arg2);
case KEYCTL_GET_SECURITY:
return keyctl_get_security(arg2, compat_ptr(arg3), arg4);
case KEYCTL_SESSION_TO_PARENT:
return keyctl_session_to_parent();
case KEYCTL_REJECT:
return keyctl_reject_key(arg2, arg3, arg4, arg5);
case KEYCTL_INSTANTIATE_IOV:
return keyctl_instantiate_key_iov(arg2, compat_ptr(arg3), arg4,
arg5);
case KEYCTL_INVALIDATE:
return keyctl_invalidate_key(arg2);
case KEYCTL_GET_PERSISTENT:
return keyctl_get_persistent(arg2, arg3);
case KEYCTL_DH_COMPUTE:
return compat_keyctl_dh_compute(compat_ptr(arg2),
compat_ptr(arg3),
arg4, compat_ptr(arg5));
case KEYCTL_RESTRICT_KEYRING:
return keyctl_restrict_keyring(arg2, compat_ptr(arg3),
compat_ptr(arg4));
case KEYCTL_PKEY_QUERY:
if (arg3 != 0)
return -EINVAL;
return keyctl_pkey_query(arg2,
compat_ptr(arg4),
compat_ptr(arg5));
case KEYCTL_PKEY_ENCRYPT:
case KEYCTL_PKEY_DECRYPT:
case KEYCTL_PKEY_SIGN:
return keyctl_pkey_e_d_s(option,
compat_ptr(arg2), compat_ptr(arg3),
compat_ptr(arg4), compat_ptr(arg5));
case KEYCTL_PKEY_VERIFY:
return keyctl_pkey_verify(compat_ptr(arg2), compat_ptr(arg3),
compat_ptr(arg4), compat_ptr(arg5));
case KEYCTL_MOVE:
return keyctl_keyring_move(arg2, arg3, arg4, arg5);
case KEYCTL_CAPABILITIES:
return keyctl_capabilities(compat_ptr(arg2), arg3);
case KEYCTL_WATCH_KEY:
return keyctl_watch_key(arg2, arg3, arg4);
default:
return -EOPNOTSUPP;
}
}